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A decrease in pressure, just as a rise in temperature, can melt materials, specifically rocks in this case. Therefore, decompression melting takes place as a result of less pressure being exerted on rocks. This occurrance is common at mid-ocean ridges where rocks are uplifted and consequently have less overburden.
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What causes melting of material under divergent plate boundaries Is it melting of rock recompression of rock freezing of rock or decompression of rock?
decompression of rock
When solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
Yes.
Is the following sentence true or false when solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
true
How is decompression melting triggered?
Mantle convection works to uplift rocks at mid-ocean ridges where they are exposed to less overburden and therefore, less pressure. As the pressure decreases, the rocks begin to melt.
What observation has been made about the age of the basalt that forms a mid ocean ridge?
New magma of basalt composition emerges at and near the axis because of decompression melting in the underlying Earth's mantle.
What causes melting of material under divergent plate boundaries Is it melting of rock recompression of rock freezing of rock or decompression of rock?
decompression of rock
Which two processes commonly generate magma?
decompression melting and wet melting (the addition of volatiles) :)
Mafic magma is generated at divergent boundaries because of?
decompression melting
Where does most magma originate?
Most melts on earth originate from plate boundaries. These are areas where there is decompression melting or hydrous melting because of subduction zones.
When solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
Yes.
What is the primary process involved in the formation of magma at a rift?
Decompression melting of extremely hot mantle rock as it rises toward the surface.
How does magma form?
Magma can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.
What cause inside the earth to melt?
Heat. Molten rock can be formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantle rock.
Explain how scientist tink most magma is formed?
Magma is formed from the subduction and melting of cold, dense, wet oceanic crust at some convergent plate margins. The moisture in the rock assists in the melting of the crust and the rock surrounding it. Magma is also formed at hot spots in the mantle where hot material undergoes decompression melting as it rises. Decompression melting also occurs at the mid-ocean ridges where new oceanic crust is formed from rising mantel rock.
Is the following sentence true or false when solid mantle rock rises during seafloor spreading magma is produced as a result of decompression melting?
true
Is melting of the mantle achieved by decreasing pressure at divergent plate boundaries?
Yes. Decompression melting occurs at divergent plate boundaries as pressure on the mantle material decreases due to the withdrawal of oceanic crust at spreading centers.
How do you use the word decompression in a sentence?
The decompression of gas caused the tube to break. Removing compression from something is decompression.
